Matthew Fraser Ahearn sold $465K of SI stock

Matthew Fraser Ahearn, Chief Operating Officer of Shoulder Innovations, Inc. (SI), sold 22,500 shares of SI stock worth $465K, per an SEC Form 4 filed Aug 18, 2026.

The sale was pre-arranged (a 10b5-1 plan or an option exercise), not a fresh decision.

The trade happened on Aug 14, 2026, 4 days before it was made public.

SI has moved +5.7% since the trade date, from $20.73 to $21.92 (Nov 11, 2026 close).